ClinicalTrials.gg
Enrolling by invitationNCT07204938Updated Jul 30, 2026

A Long-Term Study of Navenibart in Participants With Hereditary Angioedema

A Phase 3 interventional study of navenibart in Hereditary Angioedema (HAE), sponsored by Astria Therapeutics, Inc.. Enrolling by invitation at 40 sites in 18 countries. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2026-07-30.

Sponsored by Astria Therapeutics, Inc. (part of BioCryst Pharmaceuticals) · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
145
Allocation
Non-randomized
Ages
12 Years and older
Sex
All
01

Study summary

This is a Phase 3 multicenter trial in 2 parts to evaluate the long-term safety and efficacy of navenibart in adult and adolescent participants with hereditary angioedema (HAE) who participated in STAR-0215-301 (NCT06842823; ALPHA-ORBIT). Part 1 provides all participants with navenibart in a dose-controlled fashion; Part 2 introduces a personalized dosing option (PDO) for participants based on individual needs.

02

Conditions studied

  • Hereditary Angioedema (HAE)

Keywords

  • HAE
  • Angioedema
  • Long-Term
  • Safety
03

In context

Angioedemas, Hereditary

171 studies on the registry are indexed under Angioedemas, Hereditary; 24 are open to participants now.

This study's planned enrollment of 145 is above the median of 48 across 116 interventional studies indexed under Angioedemas, Hereditary.

Browse Angioedemas, Hereditary studies →

Lead sponsor

Astria Therapeutics, Inc. is the lead sponsor of 7 studies on the registry; 2 are open to participants now.

First submitted before Astria Therapeutics, Inc. became part of BioCryst Pharmaceuticals.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

1. Participants from STAR-0215-301 who met one of the following conditions:

  1. Completed STAR-0215-301 through the Day 181 visit
  2. Withdrew from STAR-0215-301 but met the following criteria:

i. Received 2 doses of IP ii. completed ≥ 2 months of trial follow-up after the second dose of IP iii. Met other eligibility criteria as assessed by Investigator

Exclusion criteria

Exclusion Criteria:

  1. Participation in an clinical trial other than STAR-0215- 301 in the 30 days or any exposure to an investigational drug (other than navenibart in STAR-0215-301) within 5 half-lives before /assent
  2. Any exposure to angiotensin-converting enzyme (ACE) inhibitors or any estrogen containing medications with systemic absorption (such as hormonal or hormone replacement therapy) within 30 days before Screening.
  3. Known sensitivity to the ingredients in the formulation of IP
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
145 participants (estimated)

Study arms

  • Experimental
    Adult Dosing Regimen 1

    Participants will receive 600 mg of navenibart every 3 months.

    Drug: navenibart

  • Experimental
    Adult Dosing Regimen 2

    Participants will receive 300 mg of navenibart every 3 months.

    Drug: navenibart

  • Experimental
    Adult Dosing Regimen 3

    Participants will receive 600 mg of navenibart every 6 months.

    Drug: navenibart

  • Experimental
    Adolescent Dosing Regimen 1

    Participants will receive 300 mg of navenibart every 3 months.

    Drug: navenibart

Interventions

  • Navenibart will be administered as a subcutaneous injection.

    Also known as: STAR-0215

06

What researchers measure

Primary outcomes

  1. Incidence of treatment-emergent adverse events (TEAEs)

    Time frame: Day 1 through Month 48

Secondary outcomes

  1. Number of time-normalized investigator-confirmed HAE attacks

    Time frame: Day 1 through Month 48

  2. Number of moderate or severe investigator-confirmed HAE attacks

    Time frame: Day 1 through Month 48

  3. Number of investigator-confirmed HAE attacks that require on-demand treatment

    Time frame: Day 1 through Month 48

  4. Percent reduction in monthly investigator-confirmed HAE attacks

    Time frame: Day 1 through Month 48

  5. Time to first investigator-confirmed HAE attack after first dose

    Time frame: Day 1 through Month 48

  6. The number of participants responding to treatment, defined as a ≥ 50%, ≥ 70%, or ≥ 90% reduction in investigator-confirmed HAE attack rate

    Time frame: Day 1 through Month 48

  7. Number of participants with no investigator-confirmed HAE attacks

    Time frame: Day 1 through Month 48

  8. Angioedema Quality of Life questionnaire total score

    The Angioedema Quality of Life Questionnaire (AE-QoL) consists of 17 questions divided into four domains: functioning (4 questions), fatigue/mood (5), fears/shame (6), and food/nutrition (2). Each question is answered on a 5-point scale from "never" to "very often." Scores are calculated for each domain and then normalized to a scale from 0 to 100, where 0 represents the best possible quality of life and 100 the worst.

    Time frame: Day 1 through Month 48

07

Study locations

40 sites
  • Site 2
    Scottsdale, Arizona 85251, United States
  • Site 3
    Little Rock, Arkansas 72205, United States
  • Site 7
    San Diego, California 92122, United States
  • Site 4
    Santa Monica, California 90404, United States
  • Site 1
    Walnut Creek, California 94598, United States
  • Site 5
    Centennial, Colorado 80112, United States
  • Site 19
    Colorado Springs, Colorado 80907, United States
  • Site 21
    Wheaton, Maryland 20902, United States
  • Site 6
    Cincinnati, Ohio 45236, United States
  • Site 9
    Hershey, Pennsylvania 17033, United States
  • Site 22
    Santo André, 09060870, Brazil
  • Site 20
    Sofia, 1680, Bulgaria
  • Site 23
    Edmonton, AB T6G 2B7, Canada
  • Site 36
    Prague, 150 06, Czechia
  • Site 39
    Paris, 75012, France
  • Site 25
    Frankfurt, D-60590, Germany
  • Site 10
    Hong Kong, Hong Kong
  • Site 29
    Ashkelon, 783604, Israel
  • Site 30
    Haifa, 3104802, Israel
  • Site 31
    Petah Tikva, 49100, Israel
  • Site 24
    Petah Tikva, 4920235, Israel
  • Site 37
    Milan, 20157, Italy
  • Site 38
    Monserrato, 09042, Italy
  • Site 40
    Kawagoe, Saitama 350-0844, Japan
  • Site 27
    Fukuoka, 830-0011, Japan
  • Site 33
    Kawasaki, 216-8511, Japan
  • Site 17
    Amsterdam, Netherlands
  • Site 18
    Skopje, 1000, North Macedonia
  • Site 35
    Krakow, 31-503, Poland
  • Site 16
    Rzeszów, 35-051, Poland
  • Site 32
    San Juan, 00918, Puerto Rico
  • Site 11
    Cape Town, South Africa
  • Site 34
    Madrid, 28007, Spain
  • Site 26
    Valencia, 46026, Spain
  • Site 12
    Bristol, BS10 5N, United Kingdom
  • Site 8
    Cambridge, CB2 0QQ, United Kingdom
  • Site 28
    Frimley, GU16 7UJ, United Kingdom
  • Site 15
    Hampstead, NW3 2QG, United Kingdom
  • Site 13
    London, E1 2ES, United Kingdom
  • Site 14
    Plymouth, PL6 8HD, United Kingdom
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 30, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07204938
Responsible party
Sponsor
First posted
Oct 3, 2025
Start date
Oct 1, 2025
Primary completion
Jun 2031 (estimated)
Completion
Dec 2031 (estimated)
Last update
Jul 30, 2026

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Navenibart

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